Condition: Stomach Disorders
The only actual explicit mention of a stomach problem is in 1 Timothy 5:23, where Paul tells Timothy to change what he drinks for his stomach’s sake. This does NOT mean that God is unwilling to heal stomach troubles. Ulcers could also be considered to be covered under boils or sores, both of which are explicitly part of the curse for breaking the Law, from which you are redeemed. Any stomach illness is included in Deuteronomy 28:61, which says that every sickness not enumerated is included in the curse for breaking the Law as well. For more about Paul’s advice to Timothy, see Objection: Paul Told Timothy to Drink Wine Instead of Believing God for Healing. Paul’s natural advice can keep you out of stomach trouble in parts of the world today.
Just because you have claimed your healing does not mean that it is a good idea to go eat the spiciest food you can find before your healing has manifested itself. Faith does not set aside common sense. Once your healing has manifested itself, you can eat what you want.